Kitchen appliance base



FIG. 1 is a top plan view of a kitchen appliance base showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a rear elevation view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a kitchen appliance base, substantially shown and described. 